In scientific research, people will always encounter a large amount of random data. In order to obtain valuable patterns and conclusions, these data need to be analyzed, and the scientific visualization function is to convert a large amount of alphabetical and numerical data into a form that is easier to understand than the original data. visual images and allow participants to examine these "visible" data with the help of visual virtual devices. It is often used to build digital models of molecular structures, earthquakes, and components of the Earth's environment.

Virtual reality is often used in sales promotions. For example, when bidding for a construction project, the design plan can be presented using virtual reality technology, and the owner can be taken into the future building to visit, such as the height of the door, the orientation of the windows, the amount of lighting, interior decoration, etc., so that the owners can empathize with them. It can also be used for tourist attractions and merchandising with numerous functions and uses. Because using virtual reality technology to show the charm of such products is more attractive than using text or pictures alone to promote them.

In terms of medical education and training, doctors have limited opportunities to train and practice complex surgeries, but in the VR system, they can practice different operations repeatedly. VR technology will be able to repeatedly conduct very realistic exercises for operations that are dangerous, cannot make mistakes, but have little or no real practice. At present, many foreign hospitals and medical schools have begun to use digital models to train surgeons. The approach is to integrate information obtained from X-ray scanning, ultrasonic detection, nuclear magnetic resonance and other means to establish a simulation model that is very close to the real human body and organs.

In the military, the latest technological achievements of virtual reality are often first used in aerospace and military training. Virtual reality technology can be used to simulate the control and training of new weapons such as aircraft to replace dangerous actual operations. Using virtual reality to simulate the actual environment, large-scale military internship simulations can be carried out in a virtual or simulated environment. The virtual reality simulation scene is just like a real battlefield, and operators can experience the real feeling of attacking and being attacked. This will facilitate the smooth transition from virtual weapons and battlefields to real weapons and battlefield environments, and its impact on various military activities will be extremely far-reaching and broad military application prospects. So far, virtual reality technology is playing an increasingly important role in the military.

As a carrier for displaying information, the potential application capabilities of VR in the future art field cannot be underestimated. The on-site participation and interactive capabilities of VR can transform static art (such as oil paintings, sculptures, etc.) into dynamic ones, allowing viewers to better appreciate the author's art. VR improves artistic expression capabilities. For example, the real scene and virtual three-dimensional effect of Dunhuang’s “nine floors”.

Virtual reality technology can clearly express things in three-dimensional space, allowing learners to interact directly and naturally with various objects in the virtual environment. And participate in the development and change process of events through various forms, so as to gain the greatest degree of freedom to control and operate the entire environment. This virtual learning and training environment that presents multi-dimensional information will provide the most intuitive and effective way for learners to master new knowledge and skills. It has obvious advantages and characteristics in many education and training fields, such as virtual laboratories, three-dimensional concepts, ecological teaching, special education, simulation experiments, and training in professional fields. For example, when students learn the composition, structure, and working principles of a certain mechanical device, such as a water turbine engine, traditional teaching methods use diagrams or videos to show students, but this method makes it difficult for students to understand the operation of this device. Have a clear understanding of processes, states and internal principles. Virtual reality technology can fully demonstrate its advantages: it can not only intuitively show students the complex structure, working principle and operating status of each component during operation, but can also simulate the behavior of each component when it fails. performance and reasons, providing students with simulation training opportunities to comprehensively inspect, manipulate and even repair virtual things, thereby achieving twice the result with half the effort in teaching and experimentation.

Virtual reality has been widely used in industrial fields. For the automotive industry, virtual reality technology is not only the latest technology development method, but also a complex simulation tool. It aims to establish an artificial environment in which people can engage in driving, driving, and driving in a natural way. real-time activities such as operations and design. And virtual reality technology can also be widely used in automobile design, experiments and training. For example, a three-dimensional car model established with the help of virtual reality technology in product design can display the car's suspension, chassis, interior and even each welding point. Designers can determine the quality of each component and understand how each component will perform. This three-dimensional model is highly accurate, and automobile manufacturers can directly carry out mass production based on the obtained computer data. Virtual reality technology also has a large number of applications in CAD, technical education and training and other fields. In the construction industry, virtual reality can serve as a further extension of well-produced architectural renderings. It can form and interact with the three-dimensional architectural scene. People can walk freely in the building and operate and control the equipment and room decoration in the building. On the one hand, designers can understand and discover design deficiencies from the perception of the scene; on the other hand, users can feel the real architectural space in the virtual environment and make their own judgments.

non-interactive experience

People – interactive experiences in virtual environments

Group - interactive experience in virtual environment

Desktop VR system (Desktop VR)

Immersive VR system

Augmented Reality

Distributed virtual reality system (Distributed VR)

hardware abstraction layer

operating system layer

On the library function level

On the programming language level